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Side-by-side, with the numbers that matter.

Two rigs, one table. Higher numbers win in cobalt; TDP and price flip.

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SpecBoston Dynamics SpotSambaNova SN40L Reconfigurable Dataflow Unit
Battery WH564—
Bf16 Tflops PER Socket—638
Canonical NameBoston Dynamics Spot—
Commercial Release Year2,020—
Current Family Listed—SN50, SN40
Current Price Publishedfalse—
DDR Bandwidth GB S—200
Ddr5 Capacity TB—1.5
Deployment Statuscommercial—
DOF12—
Form factorquadruped—
FOV Degrees360—
HBM Bandwidth TB S—1.8
Hbm3 Capacity GB—64
IP RatingIP54—
Joints PER LEG3—
Legs4—
Length IN43.3—
Length MM1,100—
MAX Slope Degrees30—
MAX Speed M S1.6—
MSRP (USD)↓ better74,500—
ON Chip Sram MB—520
Operating Temp MAX C55—
Operating Temp MIN C-20—
Operating Temp MIN C ABS20—
Packaging—3x CoWoS-S, 2 accelerator dies
Pattern Compute Units—1,040
Payload DC Voltage MAX V58.8—
Payload DC Voltage MIN V35—
Payload KG14—
Payload LBS30.9—
Payload Power W PER Port150—
Process Node—TSMC 5nm
Range M4—
Recharge Minutes60—
Runtime Minutes90—
Standing Height MM610—
Status Checked2026-09-242026-09-24
Step Height MM300—
Successor—SN50 (fifth-generation RDU)
Successor Introduced—2026-02-24
VendorBoston Dynamics—
Weight KG33.8—
Weight LBS74.5—
Width IN19.7—
Width MM500—